Mongolia in May has mild conditions, with highs averaging 16.1°C (61°F) and noticeably cooler mornings. Temperatures drop noticeably between day and night.
This month falls at the end of Spring.
Temperature
16°C / 3°C
Mongolia Weather in May 2027
Monthly climate averages for Ulan Bator. Based on 10-year ERA5 reanalysis data.
Dwb Warm-Summer Continental (monsoon)
Climate Overview
Compared to April, this month is about 6°C warmer with 2 more rainy days. Temperatures will rise further into June.
Monthly May Averages
Feels Like
12°C / -1°C
Rain
6 days · 29 mm
Sunshine
12h / day
Humidity
50% — Moderate
Wind
19 km/h
Wind Direction
NW (326°)
Gusts
45 km/h
Daylight
15.2 h
Cloud Cover
57%
Clear Sky Days
3.3
Dew Point
0°C — Dry
Moon Phase
Waxing Gibbous · 66%
Snow Days
4 days · 7.5 cm
Frost Days
7 days
Seasonal Demand
Quiet (2/5)
Sun Position
Sunrise 05:16
Daylight 15.1h
Sunset 20:24
Pros
- Abundant sunshine for exploring and outdoor fun
- Quieter period with less favourable weather
What to Wear
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions. Temperatures drop significantly at night, so pack layers you can add or remove throughout the day. Pack a compact umbrella or light rain jacket for occasional showers.
Packing List
Layered clothingLight jacketUmbrellaComfortable walking shoes
Compare Months
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September
Fair October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | Status | Details |
|---|---|---|---|---|---|---|---|
| January | -14°C / -26°C | -19°C / -31°C | 1days (2 mm) Excellent | 7.8h Good | 74% Muggy | Poor | View Details |
| February | -10°C / -23°C | -15°C / -28°C | 1days (3 mm) Excellent | 9.4h Good | 70% Muggy | Poor | View Details |
| March | 1°C / -12°C | -4°C / -17°C | 3days (8 mm) Excellent | 10.7h Excellent | 55% Moderate | Poor | View Details |
| April | 10°C / -3°C | 5°C / -8°C | 4days (16 mm) Good | 11.5h Excellent | 45% Moderate | Poor | View Details |
| May | 16°C / 3°C | 12°C / -1°C | 6days (29 mm) Good | 12h Excellent | 50% Moderate | Fair | View Details |
| June best | 22°C / 9°C | 20°C / 7°C | 10days (53 mm) Wet | 12.4h Excellent | 60% Moderate | Excellent | View Details |
| July best | 24°C / 13°C | 24°C / 12°C | 13days (77 mm) Wet | 11.4h Excellent | 68% Muggy | Excellent | View Details |
| August best | 21°C / 11°C | 20°C / 10°C | 12days (81 mm) Wet | 10.8h Excellent | 73% Muggy | Excellent | View Details |
| September | 17°C / 5°C | 14°C / 2°C | 8days (39 mm) Wet | 10.1h Excellent | 66% Muggy | Fair | View Details |
| October | 7°C / -5°C | 2°C / -10°C | 3days (14 mm) Excellent | 9.1h Good | 62% Muggy | Poor | View Details |
| November | -4°C / -16°C | -9°C / -20°C | 4days (11 mm) Good | 7.9h Good | 71% Muggy | Poor | View Details |
| December | -15°C / -25°C | -20°C / -30°C | 1days (4 mm) Excellent | 7.4h Good | 73% Muggy | Poor | View Details |
Frequently Asked Questions
May is typically fair for visiting Mongolia, with average highs of 16°C (61°F) and around 6 rainy days. Mongolia in May has mild conditions, with highs averaging 16.1°C (61°F) and noticeably cooler mornings. Temperatures dro
Mongolia typically sees around 6 rainy days in May with 29 mm (1.1 in) of total rainfall. An umbrella should suffice.
With highs of 16°C (61°F) and lows of 3°C (38°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.
May is not the most favourable month weather-wise in Mongolia. Consider visiting during months with milder temperatures or less rainfall for a better experience.
Yes, Mongolia typically sees around 4 snow days in May with roughly 8 cm (3 in) of snowfall.
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